Starlings around here do migrate in flocks. We have flocks of mixed black birds, which include Red winged black birds, Grackles, Starlings, and Brewers (I think don't have my bird book handy) blackbirds. Every spring and fall they gather in mass and then take off. It is really cool its like a river of black birds. I have watched the "river" go by for over half an hour before. That is a heck of a lot of dark birds. I missed them this year they just seemed to be gone. I was probably at work boo hiss
We have some here in Ohio but they usually leave with Red Winged Black Birds who are all ready gone for the winter. Uh Oh does that mean that we once again are going to have an early winter? Yikes not another one. I still haven't recovered from the last one.